The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2007
Filed:
Sep. 21, 2004
Klaus-jürgen Winter, Wetter, DE;
Michael Dammer, Wetter, DE;
Heinrich Flaig, Bochum, DE;
Erik Appel, Wetter, DE;
Klaus-Jürgen Winter, Wetter, DE;
Michael Dammer, Wetter, DE;
Heinrich Flaig, Bochum, DE;
Erik Appel, Wetter, DE;
Demag Cranes & Components GmbH, Wetter, DE;
Abstract
A crane trolley, especially a single-rail trolley with a short overall height, with a traveling mechanism frame () having a hoisting mechanism (), which can travel by running wheels () on a rail, especially a lower flange () of an essentially horizontal beam (), wherein at least one running wheel () can be driven, and a friction roller () interacting with the driven running wheel () is arranged on the underside () of the rail. In order to create a crane trolley that guarantees a reliable reduction in the slippage of the driven running wheel () with a simple design, a pair of friction rollers () is provided, which may be positioned against the underside () of the rail by adjusting the spacing from each other via a common pressing mechanism.